Overton E B, Bracken J, Laseter J L
J Chromatogr Sci. 1977 May 10;15(5):169-73. doi: 10.1093/chromsci/15.5.169.
High resolution glass capillary columns coated with SE 52 liquid phase were used to resolve the indigenous hydrocarbons extracted from sediment samples collected from three outer continental shelf areas. The extracts were than spiked with small amounts of aliphatic or aromatic components isolated from a Louisiana crude oil and rechromatographed. The resolution was sufficient to separate almost all the isoprenoid, branched and cyclic alkanes associated with petroleum. Additionally, many of the key petroleum aromatics could also be resolved from naturally occurring organics. Such chromatographic procedures will aid in distinguishing between indigenous hydrocarbons of contemporary origin and those known to be associated with fossil hydrocarbon pollution of marine sediments.
使用涂有SE 52液相的高分辨率玻璃毛细管柱来分离从三个外大陆架区域采集的沉积物样品中提取的原生烃。然后，将提取物加入少量从路易斯安那原油中分离出的脂肪族或芳香族成分，并重新进行色谱分析。该分辨率足以分离几乎所有与石油相关的类异戊二烯、支链和环状烷烃。此外，许多关键的石油芳烃也可以与天然存在的有机物区分开来。这种色谱分析方法将有助于区分当代来源的原生烃和已知与海洋沉积物化石烃污染相关的烃类。
